Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Sol Ring

Have

Zethi, Arcane Blademaster

Multikicker {W/U}
When Zethi, Arcane Blademaster enters the battlefield, exile up to X target instant cards from your graveyard, where X is the number of times Zethi was kicked. Put a kick counter on each of them.
Whenever Zethi attacks, copy each exiled card you own with a kick counter on it. You may cast the copies.

Tundra

Command Tower

{T}: Add one mana of any color in your commander's color identity.